Combination Vehicles Practice Test | Alabama 2024 #2

Train for FREE online with our Alabama CDL combination vehicle test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AL combination license in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a combination license may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . After finishing a pre-trip inspection, you should:

Close the service line valve.

Remove the service line valve.

Leave the emergency line valve open.

Leave the rear shut-off valves open.

Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves to listen for escaping air. Close both shut-off valves before beginning to drive.

2 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:

In the same way as they would be in a vehicle without ABS.

As the vehicle is placed in neutral.

With the hand brake.

When driving a vehicle with ABS, you should brake in the same manner as you would in a vehicle without ABS.

3 . During a trip, the ____ should be open.

Rear service line shut-off valve

Rear supply line shut-off valve

Inner shut-off valves

When starting a trip, be sure that all shut-off valves are in the open position, except for the last valves on the rear trailer. It is important that air reaches the brakes on all trailers and that it is not able to escape from the back of the vehicle.

4 . When coupling a trailer:

Make sure to couple matching glad hands.

Any glad hand can be connected to any other glad hand.

It is best to leave one glad hand unattached.

Only one set of glad hands should be connected.

When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.

5 . Rollovers happen when drivers:

Turn too quickly.

Do not driving fast enough.

Pay attention to the road.

Drive illegally.

A rollover happens as a result of a driver taking a turn at too high a speed. Be sure to take turns and curves safely and slowly.

6 . Look into the back of the fifth wheel:

While testing your air brakes.

If your vehicle begins to skid.

When inspecting a coupling.

While inspecting a coupling, you should go under the trailer and look into the back of the fifth wheel. Ensure that the fifth wheel jaws are secured around the shank of the kingpin.

7 . To prevent a rollover, a driver should:

Keep cargo low.

Place cargo high.

Keep cargo loose.

Turn quickly.

Rollovers can happen when a combination vehicle is turned too quickly. To help prevent the risk of rollover, it is important to keep the vehicle's center of gravity low by loading cargo as close to the ground as possible.

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2024 Alabama | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in Alabama, you must have a valid Alabama CDL. Next, pass the Hazardous Materials Endorsement Knowledge Test. Complete a background check and fingerprinting through the Transportation Security Administration (TSA). Finally, submit your application with the required fees to the Alabama Department of Public Safety. Training courses are recommended but not mandatory.

To obtain a CDL Hazmat license, you need to have a valid Commercial Driver's License (CDL). You must also pass the Hazardous Materials Endorsement Knowledge Test. Prior to applying for the endorsement, you must clear a TSA background check. Be aware that certain criminal offenses may disqualify you from obtaining the Hazmat endorsement.

When applying for a CDL Hazmat endorsement, you need to provide a completed application form, proof of U.S. citizenship or lawful permanent residency (like a passport or birth certificate), and your current valid Commercial Driver's License (CDL). A medical examiner's certificate may also be required. Lastly, you must pass the TSA background check and fingerprinting.

Yes, there is a dedicated written test for the CDL Hazmat endorsement. This test covers topics such as loading and unloading hazardous materials, bulk packaging marking, driving and parking rules, and emergency response procedures. Passing this test is mandatory for obtaining the Hazmat endorsement on your Commercial Driver's License (CDL).

The CDL Hazmat endorsement written test covers a range of subjects including: understanding the different types of hazardous materials and their associated risks, proper loading and unloading procedures, correct use of placards and labels, emergency response procedures in case of an incident, and regulations for transport of hazardous materials. It's designed to ensure drivers can safely handle hazardous cargo.

Yes, there are extra charges associated with obtaining a CDL Hazmat endorsement. In Alabama, the endorsement itself costs $20. However, you also need to account for the cost of the TSA background check and fingerprinting, which is approximately $86.50. These prices can vary slightly, so it's best to check the current fees when you apply.

Yes, to receive a CDL Hazmat endorsement, you're required to undergo a federal security threat assessment conducted by the Transportation Security Administration (TSA). This includes a fingerprint-based criminal history records check. The goal is to ensure that you don't pose a security threat and are fit to transport hazardous materials safely.

Yes, specialized training is required for a CDL Hazmat endorsement. This includes passing a written test covering hazardous materials regulations and safe handling procedures. Candidates must also pass a Transportation Security Administration (TSA) background check. While not mandatory, many choose to complete a training course to prepare for the test and handle hazardous materials safely.

No, you cannot transport hazardous materials without a valid CDL Hazmat endorsement in Alabama. The endorsement is required by federal law to ensure that drivers have the necessary knowledge and skills to safely transport hazardous materials. Driving without this endorsement could result in serious penalties, including fines and suspension of your CDL license.

Yes, you can add the CDL Hazmat endorsement to your existing CDL license. You don't need to apply for a new CDL. However, you must pass the Hazmat knowledge test, undergo a TSA background check, and pay the required fees. Once these steps are complete, the endorsement will be added to your current CDL license.